Distribution Arrester
Metal oxide surge arresters are currently the most advanced protective devices for limiting overvoltages. They are widely used in power generation, power transmission and distribution systems to protect the insulation of electrical equipment from overvoltage damage. The metal oxide surge arrester with organic jacket is a scientific research achievement combining the technical advantages of organic insulating materials and traditional porcelain sleeve metal oxide arresters. It not only has the advantages of porcelain sleeve metal oxide surge arresters, but also has good electrical insulation performance, dielectric It has the advantages of high strength, leak resistance, electric corrosion resistance, heat resistance, cold resistance, aging resistance, explosion-proof, water repellency, and good sealing performance.
Distribution Arrester
Product use conditions:
a) Suitable for indoor and outdoor use;
b) Ambient temperature -40°C~+40°C;
c) The altitude does not exceed 3000m (the porcelain sleeve type does not exceed 1000m);
d) The power frequency is not less than 48Hz and not more than 62 Hz;
e) The long-term power frequency voltage applied between the arrester terminals does not exceed the continuous operating voltage of the arrester;
f) Areas with an earthquake intensity of 8 degrees or below;
g) The maximum wind speed shall not exceed 35m/s.
Product Model Description:
According to JB/T 8459-1996 "Surge Arrester Product Model Compilation Method", the description of the metal oxide arrester product model is as follows:
Product type: Y—indicates porcelain sleeve metal oxide arrester
YH (HY)—indicates metal oxide surge arrester with organic jacket
Structural features: W—means no gap C—means series gap
Place of use: S—indicates power distribution type Z—indicates power station type R—indicates parallel compensation capacitor
D—for motor T—for electrified railway X—for line type
Additional features: W—indicates antifouling type G—indicates plateau type TH—indicates use in humid tropics
DL—represents cable type arrester (advantages: the product adopts a fully sealed structure, the creepage distance is large, and it can be applied to heavily polluted places)
product model:
Users can choose different types of lightning arresters according to the protected objects, and they can choose anti-pollution type and plateau type according to different places of use. In order to meet the needs of the market, our factory can design various non-standard products according to the requirements of users.
The power distribution type is used to protect the switchgear, voltage transformer, box-type transformer, cable outlet, column oil switch and other power distribution equipment of the corresponding voltage level from the damage of the atmosphere and operating overvoltage.
